Teton Area
Jackson Ranger District, POB 1689, Jackson WY 83001
- Issued:  Feburary 7, 2010 6:00 AM - MST

G E N E R A L - A V A L A N C H E - H A Z A R D

FEB 07 /2010 -> At the mid and upper elevations, the possibility persists for backcountry travelers to trigger hard slab avalanches to the base of the snowpack in steep avalanche terrain. These slabs may fail after a slope has been crossed several times if a shallow weak zone is encountered. Larger loads, such as snowmobiles or groups of skiers, have a greater potential to cause failure of these weaknesses. Yesterday, a skier remotely triggered an 18 inch soft slab on a northeast facing aspect in Christmas tree bowl on Teton Pass. Similar surface slides, along with loose snow sluffs, are also possible today. Any extended periods of sunshine will increase the likelihood of these slides. At the lower elevations the avalanche hazard is limited to isolated pockets in very steep terrain.

High Elevations (9,000´-10,500´)	Morning MODERATE	Morning MODERATE
Mid Elevations (7,500´-9,000´)	Morning MODERATE	Morning MODERATE
Low Elevations (6,000´-7,500´)	Morning LOW	Morning LOW

C O N D I T I O N S

Extreme: Wide spread areas of unstable snow exist and avalanches are certain on some slopes. Backcountry travel should be avoided.

High: Mostly unstable snow exists on a variety of aspects and slope angles. Natural avalanches are likely. Travel in avalanche terrain is not recommended.

Considerable: Dangerous unstable slabs exist on steep terrain on certain aspects. Human triggered avalanches probable. Natural avalanches possible.

Moderate: Areas of unstable snow exist. Human triggered avalanches are possible. Larger triggers may be necessary as the snowpack becomes more stable. Use caution.

Low: Mostly stable snow exists. Avalanches are unlikely except in isolated pockets.

M O U N T A I N - W E A T H E R - P A S T - 2 4 - H O U R S

At 10,400' Elevation:	5 AM Temp:9° F	Max Temp: 29 ° F	Avg Wind Direction: Westerly	Avg. Wind Speed:9	Max Wind Gust: 24
Location			Snowfall/Prec.	Total Snow Depth	Total Snowfall
At 9,300' Elevation (Raymer Plot)			0" / 0"	68"	256"
At 9,580' Elevation (Rendezvous Bowl Plot)			0 " / 0"	77"	286"

M O U N T A I N - W E A T H E R - F O R E C A S T - F O R - T O D A Y

Above morning valley fog, expect partly cloudy to mostly sunny skies as a cold, Canadian air mass moves over the region.
Temperature Forecast for 8,000´-9,000´:	Rising into the low 20s.
Ridge Top Wind Forecast for 10,000´:	Northeasterly at 5 to 15 miles per hour.
Snowfall Expected Next 24 Hours:	0 to a trace"

D A I L Y - G E N E R A L - A V A L A N C H E - A D V I S O R Y

At the mid and upper elevations, the possibility persists for backcountry travelers to trigger hard slab avalanches to the base of the snowpack in steep avalanche terrain. These slabs may fail after a slope has been crossed several times if a shallow weak zone is encountered. Larger loads, such as snowmobiles or groups of skiers, have a greater potential to cause failure of these weaknesses. Yesterday, a skier remotely triggered an 18 inch soft slab on a northeast facing aspect in Christmas tree bowl on Teton Pass. Similar surface slides, along with loose snow sluffs, are also possible today. Any extended periods of sunshine will increase the likelihood of these slides. At the lower elevations the avalanche hazard is limited to isolated pockets in very steep terrain.

Go to JHAvalanche.org to get the latest, most up-to-date avalanche and backcountry forcast that may change throughout the day.

For further information call 307-733-2664 To report an avalanche observation call 307-739-2607